This is going to be exposed (and not the old entrypoint) for some DRI drivers once the megadrivers series lands, and the plan is to eventually transition all drivers to that. Hopefully this is unobtrusive enough to merge to stable X servers so that they can be compatible with new Mesa versions.
v2: typo fix in the comment
7ecfab4 glx: Add support for the new DRI loader entrypoint.
glx/glxdricommon.c | 24 ++++++++++++++++++++++--
1 file changed, 22 insertions(+), 2 deletions(-)